Independent predictors and timing of portomesenteric vein thrombosis after bariatric surgery

Occlusive Thrombosis of the Superior Mesenteric Vein Following Duodenal Switch Procedure: A Case Study

“…Cases of occlusion of the SMV as reported are uncommon, and portomesenteric thrombus formation, after bariatric surgery, is even more rare. 1,2 Asymptomatic cases may go undiagnosed, but patients who present with life-threatening complications require immediate intervention. Some of the more common causes of benign occlusion of the SMV include pancreatitis or surgical injury, that is, bariatric procedures.…”

“…8 Risk factors for patients with stent failure include a prior history of venous thrombosis, hypercoagulability, and postoperative complications such as obstruction, leak, or hemorrhage. 1 Most patients are put on anticoagulation treatments for the first 2-5 days following the procedure and potentially longer, as most cases of PVT occur within the first 4 weeks after surgery. 1,3…”

“…1 Most patients are put on anticoagulation treatments for the first 2-5 days following the procedure and potentially longer, as most cases of PVT occur within the first 4 weeks after surgery. 1,3…”

“…Thrombosis of the portomesenteric veins is a relatively uncommon but serious complication following bariatric surgeries, particularly after laparoscopic sleeve gastrectomy (LSG). 1 The incidence of portomesenteric vein thrombosis (PVT) has been reported postoperatively from 0.3% to 1%, across multiple published studies. 2 While mild cases of PVT can be asymptomatic, there is a risk of potentially fatal effects if left untreated.…”

“…7 It has been reported that most cases of PVT occur within 2-4 weeks postoperatively. 1 Diagnosis of PVT is usually based on clinical presentation and preadmission imaging studies, such as computed tomography (CT) and sonography. Although patients may present with varied and transient symptoms, most will experience abdominal pain, nausea, vomiting, diarrhea, and GI bleeding.…”